At first scientists found the virus in the catlike palm civet of Southeast Asia.
Desimone was one of the first scientists to prove it for particular cases, in 2001.
At first scientists thought that, just like photons, the particles were massless.
"We were the first environmentalists, we were the first scientists," Lameman said of her people.
At first, scientists wondered if the disease was related solely to the life styles of those who fell ill.
Dr. Mandel was also one of the first scientists to point out that saliva could be used as a diagnostic tool for more than oral diseases.
Frazer was among the first scientists to study the link between HPV infections and cervical cancer, one of the most common cancers for women.
Dr Petoukhov and his colleague Vladimir Semenov were among the first scientists to suggest a link between the loss of sea ice and colder winters in Europe.
One of the first scientists of continental Europe to accept Isaac Newton's gravitational theory, he published nearly 70 papers on optics, astronomy, gravitation, meteorology, and trigonometry.
Also, in researching cavities, Dr. Mandel was one of the first scientists to link acidity levels in saliva to the development of decay.
A specialist in mammalian reproduction and behavior, Dr. Kleiman was among the first scientists to bridge the longstanding chasm between zoologists and zoos.
